[Issue 19385] New: Question: How to set curl options for HTTP from inside dmd?

d-bugmail at puremagic.com d-bugmail at puremagic.com
Fri Nov 9 23:07:57 UTC 2018


https://issues.dlang.org/show_bug.cgi?id=19385

          Issue ID: 19385
           Summary: Question: How to set curl options for HTTP from inside
                    dmd?
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: alex.braunegg at gmail.com

Hi,

In Curl 7.62.0, this now defaults to using HTTP 2.0 for connections where h2 is
available, when build with h2 support. 

Is there a way to set the libcurl options to force http 1.1 for all connections
rather than using 'no flag' which lets libcurl choose the connection mechanism?

I have tried the following:

import std.net.curl;
http = HTTP();
http.handle.set(CurlOption.http_version,"v1_1");

However this generates the following error:

std.net.curl.CurlException at std/net/curl.d(4340): Unsupported protocol on handle
555E47E726A0

Can anyone advise how to set the curl options so that I can tell the library to
only use http 1.1?

The issue I am trying to solve is - when DMD is using HTTP2 for file downloads,
'something' is happening when the file download is being completed which is
causing an error - as the file 'disappears'. When downgrading the curl library
to 7.61.0 (which does not enable http2 by default) there is no issue.

References: 
https://dlang.org/library/etc/c/curl/curl_http_version.html
https://github.com/abraunegg/onedrive/issues/220
https://github.com/curl/curl/issues/3253

--


More information about the Digitalmars-d-bugs mailing list